Atlas Sound CP400 user service CH-2, Bridge Mono Configuration Direct Coupled

CP400 & CP700 COMMERCIAL POWER AMPLIFIER

OWNER'S MANUAL

Bridge Mono Configuration (Direct Coupled)

If higher power levels are required, the Atlas amplifier can be used in Bridge Mono mode, which utilizes both channels of the amp across the speaker load.

With the amplifier turned OFF, move the rear mounted selector switch to the “Bridge” position and connect the input signal to channel one. Connect your speaker load (4 and 8 Ω only) across the “+” terminals of both channels, with channel 1 being positive and channel 2 being negative (Figure 7).

Caution: A high voltage potential exists across the two “+” speaker terminals when operating in any Bridge Mode application!

To loudspeakers,

4 Ω minimum

CH-18, 4, and 2 Ohms				AUDIO TRANSFORMER CH-1
D I R . O U T P U T +		-	0		70		100 I S O L . O U T P U T
+				-	+	-	+
				70V			25V
	BRIDGE
	MONO		-		100V		+
CH-28, 4, and 2 Ohms								CH-2
				AUDIO TRANSFORMER
D I R . O U T P U T +		-	0		70		100 I S O L . O U T P U T
									Switch set
									to “Bridge”
-				-	+	-	+
				70V			25V
	BRIDGE
	MONO
			-		100V		+

Figure 7

25V, 70.7V, and 100V Transformer Output Wiring

For transformer coupled operation into high impedance loads, connect your loudspeaker leads to the barrier strip connections labeled “Audio Transformer.” Connect the speaker home runs as follows:

•25V - Connect the positive speaker lead to the terminal labeled “100” and the negative speaker lead to the terminal labeled “70” (Figure 8).

•70.7V - Connect the positive speaker lead to the terminal labeled “70” and the negative speaker lead to the terminal labeled “0” (Figure 9).

•100V - Connect the positive speaker lead to the terminal labeled “100” and the negative speaker lead to the terminal labeled “0” (Figure 10).

Note: Refer to page 6 of this manual to the paragraph entitled “Calculating Constant Voltage Loads” to determine how many transformer coupled loudspeakers you can drive with the Atlas amplifier.

Specifications are subject to change without notice

AtlasSound.com

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©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

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